This is an authentic VAN CLEEF & ARPELS 18K Yellow Gold Onyx Perlee Couleurs Transformable Long Necklace. The necklace is crafted of 18 karat yellow gold and features a three rings of round 18 karat yellow gold perlee pendants with an interchangeable onyx stone ring. PLEASE NOTE: This necklace does not include the turquoise or coral interchangeable rings. Follow this item for alerts. Van Cleef & Arpels is a registered trademark of Van Cleef & Arpels. FASHIONPHILE is not affiliated with Van Cleef & Arpels.